Strainer



R. W. CANN Septs, 1944.

STRAINER Filed Nov. 7, 1942 `.oooooon 0000o.002

Patented Sept. 5, 1944 UNITED STATES PATENT OFFICE y STRAINER v Ralph W. Carin, Cheyenne, Wyo. Application November 7,1042, Serial No. 464,869

' 2 Claims. (Cl. 210-15-7) This invention relates to strainers Aof the characters especially adapted for dairy purposes, wherein efficiency in straining foreign matter from milk and the like is of great importance.

The primary object of the linvention is the provision of a device of the above stated character which will be extremely easy to cleanse and maintain in a sanitary condition and will be employed for directing milk into a container and at the same time thoroughly strain the milk of foreign matter, being constructed to check agitation of the collected foreign matter and thereby reduce to a minimum the mixing thereof with the milk as received by the device.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a Vertical sectional view illustrating a strainer constructed in accordance with my invention, and showing the application thereof to a fragmentary part of a container.

Figure 2 is a sectional View taken on the line 2-2 of Figure l.

Referring in detail to the drawing, the m1- meral 5 indicates the bowl of the device including cylindrical shaped portions 6 and 'I connected by a substatnially conical-shaped portion 8. The cylindrical portions-6 and 1 are of different diameters, the cylindrical portion I forming the discharge neck of the device and which is adapted to be received within a neck 9 of a container I0.

It is preferable that the bowl 5 be of a seamless construction to render the cleaning thereof easier. A partition I I is located in the bowl 5 and forms an integral part thereof, being located where the conical shaped portion forms onto the cylindrical shaped portion l. The partition II is provided with a centrally arranged screw threaded opening I2 to have threaded therein a tube I3. The tube extends from the vlower edge of the cylindrical portion 'I tov a point above the upper edge of the cylindrical portion 6.

A perforated disc I4 is removably mounted on the tube I3 and provides a collection space I5 between itself and the partition I I, in which foreign matter may collect.

The perforated disc I4 includes a hub portion I6 which frictionally fits the tube and engages the top face of the partition II rto space the perforated disc a proper distance from the partition II to form theY collection space I5 of a desired size.

The tube I3 has formed therein a plurality of openings I6 covered by a filter element I'I mounted on the exterior of the tube I3. The filter element Il is in cylindrical shape toi conform to the contour of the tube I3 and may be constructed of any material suitable for the purpose. Semicylindrical metallic plates I8 surround the filter material and act as a protector therefor and are provided with a plurality of openings I9 arranged out of alignment with the opening I6, so that uid passing through the openings of the plates I8 must move laterally through the filter element before entering the openings IIi of the tube I3, consequently bringing about a more eicient filtering action upon the fluid.

The tube I3 is provided with annular ribs 20 engaged by the filter element and act as stops for split resilient clamps 2| employed for securing the lter element and the semi-circular shaped plates I8 assembled on the tube I3. By forcing the split clamps 2| toward the ribs, the filter element will be bound thereagainst and within grooves 22 formed in the semi-circular shaped plates I8. The openings in the semi-circular shaped plates I8 begin at a 4selected distance above the perforated disc I4 so that the fluid within the bowl below the openings of the semicircular shaped plates will be practically nonmovable in circulation, consequently permitting foreign matter separated from the liquid to descend through the Derforations of the disc I4 and collect in the space I5 and thereby be prevented from commingling with the liquid within the bowl in the act of passing through the filter element to the interior of the tube for discharge into the container I0.

The construction of the device described in the foregoing can be easily taken apart whereby each part of the device may be thoroughly cleansed permitting the device to be kept in a highly sanitary condition. .Also, the construction permits the easy removal Vof the lter element and the replacement thereof or renewal by another filter element when desired.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of the invention as claimed.

-Having described the claim is:

1. In a strainer, a bowl including cylindrical shaped portions connected by a substantially conical shaped portion and one of said cylindrical portions being of a less diameter than the other cylindrical portions to provide a discharge neck to enter a container, a partition in said bowl and provided with a centrally located screw threaded opening, a tube threaded in said opening and extending from the lower end of the discharge4 neck to a point above the upper edge of the bowl and provided with openings above the partition, a iilter element mounted on the tube and covering said openings, semi-circular shaped plates covering the filter element and provided with openings arranged out of alignment with the openings of said tube, said plates having grooves pressed therein providing ribs exteriorly of the plates, and split resilient clamps binding said plates, filter element and tube together with the lter element entering the grooves and being offset to enter the grooves by the ribs of the tube.

2. In a strainer, a bowl including cylindrical shaped portions connected by a substantially invention, what I conical shaped portion and one of said cylindrical portions being of a less diameter than the other cylindrical portion to provide a discharge neck to enter a container, a partition in said boWl and provided with a centrally located screw threaded opening, a tube threaded in said opening and extending from the lower end of the discharge neck to a point above the upper edge of the bowl and provided with openings above the partition, a filter element mounted on the tube and covering said openings, semi-circular shaped plates covering the filter element and provided with openings arranged out of alignment with the openings of said tube, said plates having grooves pressed therein providing ribs exteriorly of the plates, split resilient clamps binding said plates, lter element and tube together with the lter element extending into the grooves and being offset by the ribs of the tube to extend into the 20 grooves, and a perforated disc removably mounted on the tube between the lower ends of theA plates and the partition and spaced from the partition to form a sediment collecting space.

RALPH W. CANN. 

